于300℃，10MPa时测定了Fe2O3在KOH和HClO4稀溶液中的溶解度。溶解度数据分析表明，在中性-碱性热液中铁主要成Fe（OH）03和Fe（OH）-4形式存在。计算求得：300℃时，△G0FeOH03=-561.9土3.3kJ/mol，ΔG0FeOH-4=-662.7士5.0kJ/mol。在分析前人有关铁运移形式实验研究成果的基础上讨论了热液中铁的存在形式。Fe2O3， 溶解度， 中-碱性热液， 铁的存在形式。

The interactions between andesine grains (0.25―0.45 mm) and NaCl and KCl+NaCl solutions were experimentally studied under flow-through conditions (flow rates of solution: 7 ml/h and 1 ml/h) at 300oC and 50 MPa. For comparison, corresponding static runs were performed at the same pressure and temperature. All of these experiments were carried out in a flexible gold cell hydrothermal apparatus. The emphasis of the present study was laid on the changes in the composition of solid surface and solution chemistry at the early stage of the interaction. After the reaction an appreciable amount of etch pits and crystallites of alkali-rich feldspar appeared on the surface of the andesine. The statistical treatment of the SEM/EDAX data for the surface of the mineral reacted showed an increase in the atomic ratio of Si/Al, (K+Na)/Ca and (K+Na)/Al and a decrease in the ratio of Ca/Al, compared with the starting andesine. During the interactions, pH of solutions increased and considerable amounts of Si and Ca were transferred into the aqueous phase. In the NaCl solution experiment at a flow rate of 7 ml/h, the variations of the Si, Al, Ca and K concentration with time were very distinct. The static or "low" flow rate (1 ml/h) reaction conditions and the presence of KCl in solution seemed to hinder the release of Si in andesine to aqueous solution. It is concluded that alkali-metasomatism of andesine at flow-through condition involves the dissolution of the mineral, and the formation of alkali-rich feldspar.

为了解释碱性热水溶液中铁的行为，利用热力学近似计算法计算了100℃、200℃和300℃的铁羟络合物形成反应平衡常数。在此基础上估算了Fe2O3在热水溶液中的溶解度以及不同铁羟络合物物种的分布及其pH-Eh稳定条件，探讨了含氯化物热水溶液中Fe（Ⅲ）-羟络合物和Fe（Ⅲ）-氯络合物的相互关系。研究结果表明，Fe2O3在碱性热液中的溶解度具有地质意义，而且铁羟络合物在铁的迁移中可能起相当重要的作用。

利用石油地球化学的溶剂抽提技术和气相色谱技术研究了北京延庆碓臼峪花岗岩（深源花岗岩）样品中的可溶有机质，同时利用高温处理过的石英砂进行空白对比实验。结果表明，所研究的两个花岗岩样品中存在少量的高碳数或碳氢化合物，且具有相同的成分特征，这为自然界存在深源的长链或碳氢化合物提供了新的证据，也为解释花岗岩浆演化晚期水热流体中短链羧酸的成因提供了线索。

本文论述了在300℃，500 巴和溶液/岩石质量比为10的条件下用迪克森金袋和焊封小管技术研究了JB-2玄武岩玻璃-热液（蒸馏水、0.5%Na2CO3、0.5%NaHCO3、0.14%NaHCO3、二不同Cl-/HCO3比的NaCl-NaHCO3和0.1%NaCl溶液）反应中的溶液化学变化和蚀变矿物形成过程。结果表明，两种实验中得到的次生矿物组合基本相同；300℃和500巴时玄武岩玻璃-钠盐溶液（包括海水）反应实质上是玄武岩玻璃-水反应；碳酸盐离子使溶液中的钠含量降低以及形成次生碳酸盐。